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C. 6. DE LAVAL AND G. R. TOWNSEND.

DISK METER.

APPLICATION FILED JULY 31. I915.

PatentedSept. 30, 1919.

unrrn snares r GARE GEORGE DE LAVAL, F ORANGE, AND GEORGE E. TOWNSEND, OF EAST GRANGE, NEW JERSEY, ASSIGNORS TO I-ENRY R. WORTHINGTUN, A COORATION 015 ,NEW

EEMEY,

nrsrr name.

To all whom it may concern:

Be it known that we, CARL GEORGE on "LAVAL and GEORGE R. TowNsnND, citizens of the United States, residing at Orange and East Orange, respectively, county of Essex,

l to provide a construction of disk meter casing and associated parts that shall be simple and cheap to manufacture, convenient for assembling and disassembling/and which v Figs. 1 and 2.

mon or suitable construction.

may readily be made frost proof and restored tocondition for normal operation after the frost proof action.

As a full understanding of the invention can best be reached by a description of a construction embodying the same, such a escription will now begiven in conneotlon with the accompanying drawings showing a disk meter of the preferred form embodying the invention, and the features forming the invention will then be specifically pointed out in the claims.

In the drawings- Figure l is a vertical central sectionof the meter; i

Fig. 2 is a horizontal section on the line 2--.@ of Fig. 1, and i Fig. 3 is a section through the measuring chamber, with the top and bottorfl plates and disk removed, looking to the left in In the drawings, A is the disk chamber casing, having top and bottom plates 10, 11

of the usual conical form and 1n which moves. the disk at, which may be of any com" The disk chamber A has the usual removable p-arti tion d in the measuring disk slot, and the inlet and outlet passages b, 0 communicating with the disk chamber casing. These passages b, across each other and, as shown clearly in Figs. 2 and 3, are of a peculiar form, in that they are curved and expanded Specification of Letters Patent. Pgafimm figqfl gmpt 3(1), 1919,, Application filed. July 31, 1915. Serial No. 42,899.

vertically after crossing and at their oonnection with the disk chamber in such a way that the Water passes to and from the disk in a direction approximately tangential to the disk, so as to enter the disk chamber inthe direction in which it is'to move the disk and to leave the chamber in the direction in which the water is moving from the disk chamber, with the result that the incoming water acts upon the disk properly to move it without sudden change of direction, and leaves the disk without sudden change of direction, thus avoiding the disturbance andformation of eddies in the water resulting from the change of direction of the water that is involved in inlet and outlet passages arranged for radial flow of the water to and from the disk' chamber. These inlet. and outlet passages are also preferably of such size and form throughout, and their vertical expansion at their connection with he measuring chamber such, that the full velocity .ofthe flow is maintained, thus securing a better action and greater accuracy, especially on large flows, than with passages developed so as to reduce the velocity of the flow as it enters and leaves the disk meter. The preferredform of the passages at their connection with the measuring chamber .is shown clearly in Fig. 3.

Upon the disk chamber A. is mounted a gear chamber B and above this successively the intermedlate or change speed gear chamber C and the register chamber D, the easings of these three chambers preferably being made separate, as shown! The of and? orator.

these chambers, in the preferred construction shown, may conveniently be, and preferably are, formed of spun copper or similar metal thus producing a very simple, cheap and l1ght meter casing, and these parts and the disk chamber A are preferably connected together and the parts mounted therein as follows: The top or gear casing B is closed at the top, except as provided with openings for the gear train connection and supporting screws hereafter described, and at the bottom is open and provided with a flange 1 which seats within a recess 2 on the top of chamber A, upon a flange 3 formed ontheltop plate 10, and a clamping ring 12 is seated" upon the top of chamber A and flange 1, with a packing ring of suitable form, shown as a round packing ring. The

bottom of casing-A is formed with a similar recess 2 receiving a similar flange 3 on the bottom plate 11, and the bottom plate 13 of the meter holds this in place, this bottom plate 13 in the preferred construction shown, being shown as annular and thus forming a second clamping ring, and between this ring and bottom plate 11 is interposed a false bottom 14, madeof light spun or other flexible metal. The upper and lower plates 10, 11, also are made of light spun or other flexible metal, so as to yield under the pressure, in case of freezing of the water in the measuring chamber and thus relieve the pressure for frost proof purposes, and prevent damage to the casing on freezing by the plates 10, ll, yielding, space below plate 11 being provided by the yielding of plate 14. It will be understood, of course, that the bottom plate 13 may be a disk instead of a ring, especially if this frost bottom feature is not to be used. The rings 12, 13, clamping the casings A,B and plates 10, 11 and 14: together, are secured, in the construction shown, by hooked clamps l5 and screws also to hold the two chambers C, B together,

and the top of easing B also supports the gear connection to the change gearing in the chamber 0. The register chamber D is I shown\ as formed with a flange 7 seating over the top of easing C, and secured thereto by screws 8, the top of chamber C being open on the removal of register chamber D for access to screws 6.

g It will be seen that this casing construe-.7

tion provides, not only a very simple, cheap and light meter casing, but also one that can be readily assembled and disassembled, the whole design ofthe meterbeing such that no bolts are used in its construction, but all parts are held together by screws, and

readily accessible to a screw driver. The.

frost-proof feature, moreover, is such that all 'parts may be readily restored to normal condition after frost-proof action, and replacement of only cheap pargs not forming any part of the meter casing proper, is required. o

What we claim is:

1. In a disk meter, the combination with the measuring chamber casing and top and bottom plates inclosing the dlsk, of clamping rings above and below the chamber for answers bottom plates inclosing the disk, of clamping rings above and below the chamber for holding said casing and top and bottom plates together, means for securing the clamping rings in clamping position 011 said elements, and an upper or gear chamber casing having a flange secured by the upper clamping ring to the disk chamber casing.

3. In a disk meter, the combination with the measuring chamber casing and top and bottom plates inclosing the disk, of clamping rings above and below the chamber for bold ing said casing and top and bottom plates together, means for securing the clamping rings in clamping position on said elements, and a plate closing the disk chamber casing at the bottom and held inplace by the bottom clamping ring.

4. In a disk meter, the combination with the measuring chamber casing and top and bottom plates inclosing the disk, of clamping rings above and below the chamber for holding said casing and top and bottom plates together, means for securing the clamping rings in clamping position on said elements, a gear chamber casing having a flange secured by the upper clamping ring to the measuring chamber casing, and an upper easing seated on the gear chamber casing and having an inwardly extending flange by which it is secured to the gear chamber casing.

In a disk meter, the combination with the measuring chamber casing and top and bottom plates inclosing the disk, of clamping rings above and below'the chamber for holding said casing and top and bottom plates together, means for securing the clamping rings in clamping position on said elements, a

gear chamber casing having a flange secured by the upper clamping ring to the measuring chamber casmg, an intermediate or change gear chamber casing having an inwardly extending flange by which it is secured to the gear chamber" casing, and a register chamber casing seated on the top of the change gear chamber and having a vertical flange overlapping the same by which it is secured to the latter.

6. A disk meter having the .top and bottomwalls of its measuring chamber inclosing the disk constructed of metal of such strength and flexibility as .to'bend without breaking and relieve the pressure in case of freezing. I i i 7. A disk meter having the top and bottom walls of its measuring chamber inclosing the disk and ,a false bottom below the bility as to bend without breaking and relieve the pressure in case of freezing, of breakable clamps holding the casing and plates together and constructed to yield under freezing pressure.

9. The combination with measuring chamber casing A having top and bottom recesses 2, of top and bottom plates 10, 11 seated in said recesses, gear chamber B having a flange seated in the upper recess of the casing, clamping rings 12, 13 by which all said parts are held together, and means for securing the clamping rings.

10. The combination with measuring chamber casing A having top and bottom recesses 2, of top and bottom plates 10, -11 seated in said recesses, gear chamber B having a flange seated in the upper recess of the casing, clamping rings 12, 13 by which all said parts are held together, and hook clamps 15 for securing the clamping rings.

11. The combination with measuring chamber casing A having top and bottom recemes 2, of top and bottom plates 10,11 seated in said recesses, gear chamber B having a flange seated in the upper recess of the cas ing, false bottom 14 seated in the bottom recess of the casing, clamping rings 12, 13

by which all said parts are held together,

and means for securing the clamping rings.

12. The combination with measuring chamber casing A having top and bottom recesses 2, of top and bottom plates 10, 11 seated in said recesses, gear chamber B having a flange seated in the upper recess of the casing, clamping rings 12, 13 by which all said parts are held together, means for securing the clamps, a gear train in said chamber B suspended by screws from the top of the cham ber, and a change gear chamber C havin an internal flange seated on chamber B an secured thereto.

13. The combination with measuring chamber casing A having top and bottom recesses 2, of top and bottom plates 10, 11 seated in said recesses, gear chamber B having a flange seated in the upper recess of the casing, clamping rings 12, 13 by which all said parts are held together, means for securing the clamps, a gear train in said chamber B suspended by screws from the top of the chamber, change gear chamber C having an internal flange seated on chamber B and se cured thereto, and register chamber D having flange 7 overlapping and secured to the chamber C.

In testimony whereof, we have hereunto set our hands in the presence of two sub scribing witnesses.

. CARL GEORGE DE LAVAL. GEORGE R. TQWNSEND.

Witnesses: W. J. FRrrorrMAN,

H. T. HEDDEN. 

